Cover assembly

Claim 2

A cover assembly for an open body comprising a flexible cover having first and second ends, a rotatable rod at one end of the open body, the first end of said cover being anchored to the one end of said open body, the second end of said cover being attached to said rod and said cover being rolled around said rod, the rod being movable from one end of the open body to the other end of the open body, means for rotating said rod to unroll the cover, means for anchoring the first end of the cover to one edge of the open body, said means for rotating said rod comprising at least two pulleys mounted on the rotatable rod, one of said pulleys having a cable attached at one end to said one pulley and anchored at its other end to one end of the open body and the other of said pulleys having a cable attached at one end to said other pulley and anchored at the other end to the other end of the open body, said rod being mounted on an arm pivoted to the open body and means to swing said arm back and forth along the side of the open body, whereby movement of the arm and thus the rod from one position to the other will wind the cable around one of the pulleys and simultaneously unwind the other cable from the other pulley thereby causing the rod to rotate.

Claim 3

A cover assembly as claimed in claim 1, wherein said rod is mounted on a pair of arms extending along the side walls of the body.

Claim 4

A cover assembly as claimed in claim 2, wherein guides are provided on the body to guide the arms in a pivoted path.

Claim 5

A cover assembly as claimed in claim 3, wherein the lower ends of the arms are on a common pivoted shaft.

Claim 6

A cover assembly as claimed in claim 4, wherein said means to move the arms from one position to the other comprises a gear mechanism.

Claim 7

A cover assembly as claimed in claim 5, wherein said gear mechanism comprises a first sprocket mounted on the shaft a second sprocket mounted on a power mechanism, and a chain connecting the two sprockets together.

Claim 8

A cover assembly as claimed in claim 6, wherein two gear mechanism are mounted on said shaft.

Claim 9

A cover assembly as claimed in claim 7, wherein said power mechanism is a manual lever with the second sprockets thereon and a shaft extending from the lever.

Claim 10

A cover assembly as claimed in claim 8, wherein said power mechanism is a motor on which the second sprockets are mounted.

Claim 11

An attachment assembly for an open body comprising a flexible cover having first and second ends, a rotatable rod at one end of the open body, the first end of said cover being anchored to the one end of said open body, the second end of said cover being attached to said rod and said cover being rolled around said rod, the rod being movable from one end of the open body to the other end of the open body, means for rotating said rod to unroll the cover, means for anchoring the first end of the cover to one edge of the open body, said means for rotating said rod comprising at least two pulleys mounted on the rotatable rod, one of said pulleys having a cable attached at one end to said one pulley and anchored at its other end to one end of the open body and the other of said pulleys having a cable attached at one end to said other pulley and anchored at the other end to the other end of the open body, said rod being mounted on an arm pivoted to the open body and means to swing said arm back and forth along the side of the open body, whereby movement of the arm and thus the rod from one position to the other will wind the cable around one of the pulleys and simultaneously unwind the other cable from the other pulley thereby causing the rod to rotate.

Claim 12

An attachment assembly for an open body comprising a flexible cover having first and second ends, a rotatable rod at one end of the open body, the first end of said cover being anchored to the one end of said open body, the second end of said cover being attached to said rod and said cover being rolled around said rod, the rod being movable from one end of the open body to the other end of the open body, means for rotating said rod to unroll the cover, means for anchoring the first end of the cover to one edge of the open body, said means for rotating said rod comprising at least two pulleys mounted on the rotatable rod, one of said pulleys having a cable attached at one end to said one pulley and anchored at its other end to one end of the open body and the other of said pulleys having a cable attached at one end to said other pulley and anchored at the other end to the other end of the open body, said rod being mounted on an arm pivoted to the open body and means to swing said arm back and forth along the side of the open body, whereby movement of the arm and thus the rod from one position to the other will wind the cable around one of the pulleys and simultaneously unwind the other cable from the other pulley thereby causing the rod to rotate.

Claim 13

An attachment assembly as claimed in claim 10, wherein said rod is mounted on a pair of arms.

Claim 14

An attachment assembly as claimed in claim 11, wherein guides are provided to guide the arms in a pivoted path.

Claim 15

An attachment assembly as claimed in claim 12, wherein the lower ends of the arms are on a common pivot shaft.

Claim 16

An attachment assembly as claimed in claim 13, wherein said means to move the arms from one position to the other comprises a gear mechanism.

Claim 17

An attachment assembly as claimed in claim 14, wherein said gear mechanism comprises a first sprocket mounted on the shaft a second sprocket mounted on a power mechanism, and a chain connecting said sprockets together.

Claim 18

An attachment assembly as claimed in claim 15, wherein two gear mechanism are mounted on said shaft.

Claim 19

An attachment assembly as claimed in claim 16, wherein said power mechanism is a manual lever with the second sprockets thereon and a shaft extending from the lever.

Claim 20

An attachment assembly as claimed in claim 17, wherein said power mechanism is a motor on which the second sprockets are mounted.